Fangrui Product Details [size List]m2 X 4 X 3.5 X 30pcs, M2 X 6 X 3.5 X 30pcs, M2 X 8 X 3.5 X 30pcs, M2 X 10 X 3.5 X 20pcs, M3 X 4 X 5 X 30pcs, M3 X 6 X 5 X 30pcs, M3 X 8 X 5 X 20pcs, M3 X 10 X 5 X 20pcs, M4 X 4 X 6 X 30pcs, M4 X 6 X 6 X 20pcs, M4 X 8 X 6 X 20pcs, M4 X 10 X 6 X 15pcs, M5 X 6 X 7 X 15pcs, M5 X 8 X 7 X 10pcs, M5 X 10 X 7 X 10pcs. [high Quality Material]our Products Are Made Of High-quality Brass, Which Is More Beautiful And Durable Than Iron Materials. [assortment Boxed]this Product Is Classified And Packaged In High-quality Pp Boxes, Which Is Easy To Store And Classify. [how To Use]can Be Installed By Heating In Tapered Hole, Or Molded During . Can Be Widely Used For Plastic Parts, Especially 3d Printed Parts. Material:brass Colour:gold Package Contents: 330 X Brass Threaded Insert Nuts Only The Above Package Content, Other Products Are Not Included. Note: Light Shooting And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error